16... f8e8 Preparing the break on e5. 17. e4e5 A natural reply, advancing the center and preventing it from being broken with e6-e5. The computer is not a big fan of this move. 17... f6h5 They say that a knight on the rim is dim, but what happens when we have to choose between two squares in the corner of the board $2 A saying definitely needs to be written about this too in order to help our decision-making. 18. d3e4  18... a8c8 